CN209281368U - Conductive mould group, the touch screen and display device for having the conduction mould group - Google Patents
Conductive mould group, the touch screen and display device for having the conduction mould group Download PDFInfo
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- CN209281368U CN209281368U CN201920252227.3U CN201920252227U CN209281368U CN 209281368 U CN209281368 U CN 209281368U CN 201920252227 U CN201920252227 U CN 201920252227U CN 209281368 U CN209281368 U CN 209281368U
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- mould group
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- silver thread
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Abstract
The touch screen and display device that the utility model provides a kind of conductive mould group, has the conduction mould group.Conductive mould group, including the first nano-silver thread conductive electrode layer, the first optical adhesive layer, the second nano-silver thread conductive electrode layer and substrate, the conduction mould group further includes the metal mesh compartment being arranged on the first nano-silver thread conductive electrode layer and/or the second nano-silver thread conductive electrode layer, and the metal mesh compartment extends to matched at least one edge of the substrate.The conductive mould group conduction mould group conduction mould group and touch screen with the conduction mould group and display device not only increase the adherence of nano-silver thread conductive electrode layer and substrate, can also play the role of guard electrode material, increase screen body intensity.
Description
Technical field
The utility model belongs to display field, and in particular to a kind of conduction mould group and have the touch screen of the conduction mould group with
Display device.
Background technique
With the progress of modern touch technology, touch-screen applications range constantly expands, touch function in mobile phone, tablet computer
Almost become standard configuration；In laptop, super basis, all-in-one machine, the product for having touch function occupies the market share
Also constantly expand；From the point of view of touch screen industry, touch screen low cost, production are the directions of future development；And for general
Logical consumer, the frivolous property of touch screen, high-permeability then can more be paid close attention to；With the development of touch technology, traditional electricity
Resistive touch screen is gradually replaced more frivolous, touch-control performance more preferably capacitance-type touch screen technology；In many capacitance touch
Shield in structure, it is best with the frivolous property of the touch screen of OGS and TOL structure, transmitance；For having OGS and TOL technique, industry is logical
It is often used single layer ITO or ITO and collapses bridge structure to form touch electrode structure, need to deposit using vacuum sputtering equipment in technique
Then ito thin film forms figure using yellow light process, for collapsing, bridge structure need to also make transparent insulation layer material under the bridge that collapses；
Either which kind of structure requires expensive sputtering vacuum process deposition ITO nesa coating layer；In addition the oxidation of core material
Indium tin also gradually exposes problems: the first, indium resource deposit is limited, and ITO is as transparent electrode in more and more fields
It is used widely, this speeds up the depletion rate of indium resource, and indium price also steps up, and directly contributes device manufacturing cost
Increase；The second, ito thin film needs expensive vacuum coating equipment and could obtain under higher substrate temperature high performance
ITO nesa coating, equipment investment is huge, and technology difficulty is higher, and sputtering machine table readily becomes producing line bottleneck, and limitation produces
Energy；Third, in order to obtain lesser sheet resistance value, the thickness of usual ITO deposition is larger, this results in ITO pattern and is clear to, in order to gram
This disadvantage is taken, industry often uses the mixed blankings such as sputtering vacuum deposition silica, niobium pentaoxide before depositing ITO
Layer, this is just more increased manufacturing cost, and limits production capacity.
Based on above-mentioned factor, nano-silver thread, which replaces ITO, becomes trend, and researcher's discovery is using the preparation of silver nanowires material
Coating have excellent electric conductivity, light transmittance and bending resistance, but silver nanowires material simultaneously also have contact resistance it is higher,
With the disadvantages of substrate adhesion is poor, corrosion resistance is not strong.
Stanford Univ USA's discovery powers on gold-plated film and carry out hot-pressing processing in silver nanowire layer can reduce line and line
Between contact resistance；Discovery used halogen tungsten light irradiation that silver nanowires crosspoint can be made to be welded on one at low temperature again later
It rises, further reduces the contact resistance between silver nanowires, the transparent conducting coating light transmittance of acquisition surface electricity at 80%
Resistance only has 10 Ω/.
Although these methods can effectively reduce the contact resistance of silver wire, the corrosion resistance for improving coating is not made
With.One study group of California, USA university first coats one layer of TiO in silver nanowires coating surface2Colloidal sol, after drying
One layer of conducting polymer PEDOT:PSS is applied again, obtains silver nanowires-TiO2- PEDOT:PSS composite coating；This composite coating
Adhesion, corrosion resistance all improve a lot, but the raw material needed is more, and step is comparatively laborious, are not suitable for large area film forming.
CN102087886A first coats one layer of adhesive (such as PVA) in substrate surface, silver nanowires is coated with, by drying
The composite coating obtained later.Although this method increases substantially the adhesion of coating, but reduce the electric conductivity of coating.
In addition the graphene for also having many study groups to prepare silver nanowires and chemical vapour deposition technique (CVD) is compound, first
It is on the metallic substrate then graphene to be transferred to using process for preparing graphenes by chemical vapour deposition by silver-colored painting from metallic substrates
On layer, transfer method has matrix corrosion method etc..Although composite coating electric conductivity and adhesion that the method obtains have obviously
It improves, but the high quality transfer process of process for preparing graphenes by chemical vapour deposition, higher cost, complex process, and graphene
It is a great problem (such as CN103325442A, CN203085198U).
A kind of transparent conductive film is urgently developed in this field, can be improved electric conductivity, the adhesive force of silver nanowires coating,
It can also play the role of guard electrode material, increase screen body intensity, while its simple process, low production cost.
Utility model content
That the purpose of this utility model is to provide a kind of conductive capabilities is strong, sensitivity is good and at low cost, is particularly suitable for
The conductive mould group of various flexible touch screens.
That the purpose of this utility model is to provide a kind of conductive capabilities is strong, sensitivity is good and at low cost, is particularly suitable for
The touch screen of various flexible touch display devices.
The display device that the purpose of this utility model is to provide a kind of conductive capabilities is strong, sensitivity is good and at low cost,
Especially with the display device of flexible touch screen.
One in for achieving the above object, the utility model provides a kind of conductive mould group, including first nanometer
Silver wire conductive electrode layer, the first optical adhesive layer, the second nano-silver thread conductive electrode layer and substrate, the conduction mould group further include
Metal mesh compartment on first nano-silver thread conductive electrode layer and/or the second nano-silver thread conductive electrode layer, the gold are set
Category clathrum extends to matched at least one edge of the substrate.
As the further improvement of one embodiment of the utility model, the metal mesh compartment is set to described first nanometer
On silver wire conductive electrode layer.
As the further improvement of one embodiment of the utility model, the metal mesh compartment is extended to and the substrate
Multiple edges or all edges are matched.
As the further improvement of one embodiment of the utility model, the projection of the metal mesh compartment on the substrate
The substrate is completely overlapped.
As the further improvement of one embodiment of the utility model, the thickness of the metal mesh compartment is in 1nm-20nm
Between.
As the further improvement of one embodiment of the utility model, the basal structure is flexible, bendable substrates.
As the further improvement of one embodiment of the utility model, the thickness of the substrate is between 9nm-180nm.
As the further improvement of one embodiment of the utility model, the diameter of the nano-silver thread is less than 50nm, length
Range is between 20um-50um.
Another in for achieving the above object, the utility model additionally provides a kind of touch screen, the touch screen
Including conductive mould group described in any one embodiment as above.
Another in for achieving the above object, the utility model additionally provides a kind of display device, the display
Device includes touch screen as described above.
Compared with prior art, conductive mould group, touch screen and display device provided by the utility model, by nanometer
On silver wire conductive electrode layer be arranged metal mesh compartment, and metal mesh compartment extend to it is matched at least one edge of substrate,
The adherence of nano-silver thread conductive electrode layer and substrate is not only increased, guard electrode material can also be played, it is strong to increase screen body
Degree effect, while its simple process, low production cost.
Detailed description of the invention
Fig. 1 is the cross section structure schematic diagram of the utility model conduction mould group；
Fig. 2 is the floor map of the conductive mould group in Fig. 1；
Fig. 3 is the cross section structure schematic diagram that the utility model nano-silver thread conductive electrode layer is distributed in substrate；
Fig. 4 is the floor map that nano-silver thread conductive electrode layer is distributed in substrate in Fig. 3.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the application specific embodiment
And technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only this Shen
Please a part of embodiment, rather than whole embodiment.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
The embodiments of the present invention is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein
Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below
It crosses the embodiment being described with reference to the drawings to be exemplary, is only used for explaining the utility model, and should not be understood as practical to this
Novel limitation.
As depicted in figs. 1 and 2, the utility model embodiment provides a kind of conductive mould group, especially a kind of nano-silver thread
Transparent conductive film group successively includes the first nano-silver thread conductive electrode layer 10, the first optical adhesive layer 20, the from top to bottom
Two nano-silver thread conductive electrode layers 30 and substrate 40, conductive film further include being arranged in the first nano-silver thread conductive electrode layer 10
And/or the second metal mesh compartment 50 on nano-silver thread conductive electrode layer 30, metal mesh compartment 50 are extended to substrate 40 extremely
A few edge is matched.By increasing by one layer of metal mesh compartment 50 on nano-silver thread conductive electrode layer, nanometer is not only increased
The adherence of silver wire conductive electrode layer and substrate 40 can also play the role of guard electrode material, increase screen body intensity.
Preferably, metal mesh compartment 50 is set on the first nano-silver thread conductive electrode layer 30, and one layer need to only be arranged in this way
Metal mesh compartment, which can be realized, increases the first nano-silver thread conductive electrode layer 10 and the second nano-silver thread conductive electrode layer 30 and base
The adherence at bottom 40, to reduce the integral thickness of conductive mould group.In addition, metal mesh compartment 50 extend to it is multiple with substrate 40
Edge or all edges are matched, as long as the projected area of metal mesh compartment 50 on the substrate 40 is greater than and the first nano silver in other words
Line conductive electrode layer 10 in substrate 40 projected area, can be realized by metal mesh compartment 50 increase the first nano-silver thread
The adhesive force of conductive electrode layer 10 and substrate 40.It is, of course, preferable to be the projection and substrate of metal mesh compartment 50 on the substrate 40
40 is completely overlapped, so as to make the first nano-silver thread conductive electrode layer 10 be attached to substrate 40 from different directions.
Metal mesh compartment 50 can be arranged onto the first nano-silver thread conductive electrode layer 10 by way of printing, metal
The too thick light transmittance that will affect conductive mould group of the thickness of clathrum 50, and thickness is too thin, cannot effectively increase nano-silver thread and lead
The adhesion of electric electrode layer and substrate, the thickness of preferred metal mesh compartment 50 can both increase nanometer between 1nm-20nm
The adherence of silver wire conductive electrode layer and substrate 40, and metal mesh compartment 50 has preferable translucency, to optical property
It influences smaller.Metal mesh compartment 50 may include any one in Cu, Al, Mo and Ag.
Wherein substrate 40 is configured to flexible, bendable substrates, specifically, the material of substrate 40 such as poly terephthalic acid second two
Alcohol ester (PET), PI (polyimides), PC (polycarbonate), polymethyl methacrylate (PMMA), acryl, polyether sulfone
(PES), acrylic nitrile-butadiene-styrene (ABS), polyamide (PA), polybenzimidazoles polybutene (PB), poly- terephthaldehyde
Sour butanediol ester (PBT), polyester (PE), polyether-ether-ketone (PEEK), polyetherimide (PEI), polyetherimide, polyethylene
(PE), any one or its of polystyrene (PS), polytetrafluoroethylene (PTFE) (PTFE), polyurethane (PU) or polyvinyl chloride (PVC)
The compound of the two of anticipating, so that conductive mould group can be structured as the conductive mould group of flexible foldable.
First optical adhesive layer 20 is preferably OCA optical cement, it is both binder, while also functioning to the effect of buffer layer, can
To offset part of impact force, to guarantee the normal work of nano-silver thread transparent conductive film group.The thickness of first optical adhesive layer 20
Preferably 30~50 μm of degree.If the thickness of the first optical adhesive layer 20 is less than 30 μm, cohesive force is lower, easily leads to nano-silver thread and leads
Electric electrode layer falls off；If the thickness of the first optical adhesive layer 20 is greater than 50 μm, the blocked up light transmittance that can reduce product entirety of glue-line,
And excessive glue phenomenon easily occurs.
Refering to shown in Fig. 3 and Fig. 4, it is distributed in the schematic diagram in substrate 40 for the second nano-silver thread conductive electrode layer 30, the
Two nano-silver thread conductive electrode layers 30 include host material 31 and the nano-silver thread 32 being embedded in host material 31, matrix material
The generally transparent insulation material of material 31.First nano-silver thread conductive electrode layer 10 equally includes host material and is embedded in matrix material
Nano-silver thread in material.The nano-silver thread 32 of second nano-silver thread conductive electrode layer 30 is coated in substrate 40.First nano silver
The thickness of line conductive electrode layer 10 and the second nano-silver thread conductive electrode layer 30 can be 10nm-5 μm, preferably 20nm-1
μm, more excellent is 50nm-200nm.In some embodiments, the refractive index of nano-silver thread conductive electrode layer is 1.3-2.5, more excellent to be
1.35-1.8.If the thickness of nano-silver thread conductive electrode layer is less than 0.1 μm, conductive capability is affected, and service life
It greatly shortens；If the thickness of nano-silver conductive electrode layer is greater than 0.3 μm, though conductive capability and service life are improved, lead
Since thickness increases, transparency is declined electric layer.
In addition, the wire length of nano-silver thread 32 is 10um-300 μm, preferably 20um-100 μm, most preferably 20um-50 μm of its length,
The line footpath of nano-silver thread 32 is less than 500nm, or is less than 200nm, 100nm, preferably less than 50nm, and its length-width ratio (wire length with
The ratio between line footpath) it is greater than 10, preferably greater than 50, more preferably greater than 100.
Host material 31 refers to that nano-silver thread solution is arranged by the methods of coating on the substrate 40, by heating, drying
So that staying non-nano silver wire substance on the substrate 40 after volatile substance volatilization.Nano-silver thread 32 spreads or is embedded,
Conductive network is formed, part nano-silver thread 32 is prominent from host material 31.Nano-silver thread 32 is received by the formation of host material 31
Rice silver wire conductive electrode layer, host material 31 can protect nano-silver thread 32 from the influence of the external environments such as corrosion, wear.
Nano-silver thread solution refers to that nano-silver thread is dispersed in specific solvent and the aaerosol solution of formation, which can
To be or mixtures thereof water, aqueous solution, organic solvent, inorganic solvent, solion, saline solns, supercritical fluid, oil etc..
Also contain other additives in the solvent, such as dispersing agent, surfactant, crosslinking agent, wetting agent or thickener, but not as
Limit.
In addition, the optical characteristics of nano-silver thread conductive electrode layer can be adjusted by selecting host material appropriate, especially
It is to solve haze issues.For example, matrix can be adjusted to have desired refractive index, component and certain thickness, all
Reflection loss, glare effects, mist degree can be effectively reduced.
Configured nano-silver thread solution, using the method for fluid coating by nano-silver thread solution coating on the substrate 40.Stream
The method of body coating is selected from following any or their any combination: ink-jet is broadcasted sowing, intaglio printing, letterpress, flexo,
Nano impression, silk-screen printing, Meyer bar or blade coating, slit type are coated with (slotdiecoating), and rotary coating, needle is drawn
(stylusplotting), item seam coating, flow coat.
Based on the above embodiment, the preparation method of conductive mould group is briefly described below, comprising the following steps:
One substrate 40 is provided；
It is coated with nano-silver thread solution on the substrate 40, prepares the second nano-silver thread conductive electrode layer 30；
The first optical adhesive layer 20 is formed on the second nano-silver thread conductive electrode layer 30；
The first nano-silver thread conductive electrode layer 10 is formed in the first optical adhesive layer 20；
The first nano-silver thread conductive electrode layer 10 formed metal mesh compartment 50, and metal mesh compartment 50 extend to
At least one edge of substrate 40 is matched.
Specifically, can form metal mesh compartment 50 using printing process, nano-silver thread conductive electrode layer and substrate 40 exist
It can bending at step shown in FIG. 1.Further, it can reinforce nano-silver thread and substrate by applying default fixation pressure
40 binding force and bonded area increases itself and substrate adhesion, and can also play the role of increasing screen body intensity.Because of metal
Clathrum 50 has preferable translucency, influences on optical property smaller.In addition pressurized treatments can also make thicknesses of layers more
Uniformly, surface roughness reduces, and improves the effective utilization of transparent motor.
Transparent conductive film based on nano-silver thread shows excellent performance, including high light transmittance rate, low sheet resistance and
Excellent mechanical flexibility.Nano-silver thread transparent conductive film can be used for a variety of touch screens, such as mobile phone, tablet computer, ticketing service pavilion, electronics
Touch screen on the electronic equipment of information and game console, certainly, the utility model further relate to a kind of touch display unit, touching
Touching display device can be mobile phone, tablet computer, ticketing service pavilion, electronic information and electronic equipment of game console etc..
As shown in the above, conductive mould group provided by the embodiments of the present application, is made of nanometer silver wire material and touches electricity
Pole layer, can not only reduce the cost of manufacture of conductive mould group, and due to the superior function of nanometer silver wire material, can use it
By exploitation plane, curved surface and touch screen flexible, and then improve the scope of application of touch screen.In addition, the utility model provides
Conductive mould group, touch screen and then touch display unit, by the way that metal mesh compartment is arranged on nano-silver thread conductive electrode layer, and
And metal mesh compartment extends to matched at least one edge of substrate, not only increases nano-silver thread conductive electrode layer and substrate
Adherence, can also play the role of guard electrode material, increase screen body intensity.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model
Body explanation, it is all without departing from equivalent made by the utility model skill spirit not to limit the protection scope of the utility model
Embodiment or change should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of conduction mould group, including the conductive electricity of the first nano-silver thread conductive electrode layer, the first optical adhesive layer, the second nano-silver thread
Pole layer and substrate, which is characterized in that the conduction mould group includes being arranged in the first nano-silver thread conductive electrode layer and/or second
Metal mesh compartment on nano-silver thread conductive electrode layer, the metal mesh compartment extend at least one edge with the substrate
It is matched.
2. conduction mould group according to claim 1, which is characterized in that the metal mesh compartment is set to described first nanometer
On silver wire conductive electrode layer.
3. conduction mould group according to claim 1, which is characterized in that the metal mesh compartment extends to and the substrate
Multiple edges or all edges are matched.
4. conduction mould group according to claim 1, which is characterized in that the projection of the metal mesh compartment on the substrate
The substrate is completely overlapped.
5. conduction mould group according to claim 1, which is characterized in that the thickness of the metal mesh compartment 1nm-20nm it
Between.
6. conduction mould group according to claim 1, which is characterized in that the diameter of the nano-silver thread is less than 50nm, length
Between 20um-50um.
7. conduction mould group according to claim 1, which is characterized in that the basal structure is flexible, bendable substrates.
8. conduction mould group according to claim 7, which is characterized in that the thickness of the substrate is between 9nm-180nm.
9. a kind of touch screen, which is characterized in that the touch screen includes such as conduction any one of in claim 1 to 8
Mould group.
10. a kind of display device, which is characterized in that the display device includes touch screen as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920252227.3U CN209281368U (en) | 2019-02-28 | 2019-02-28 | Conductive mould group, the touch screen and display device for having the conduction mould group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920252227.3U CN209281368U (en) | 2019-02-28 | 2019-02-28 | Conductive mould group, the touch screen and display device for having the conduction mould group |
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| CN209281368U true CN209281368U (en) | 2019-08-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI742787B (en) * | 2020-07-31 | 2021-10-11 | 大陸商宸美（廈門）光電有限公司 | Flexible touch sensor and flexible touch display module |
| US11301098B2 (en) | 2020-08-07 | 2022-04-12 | Tpk Advanced Solutions Inc. | Flexible touch sensor and flexible touch display module |
-
2019
- 2019-02-28 CN CN201920252227.3U patent/CN209281368U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI742787B (en) * | 2020-07-31 | 2021-10-11 | 大陸商宸美（廈門）光電有限公司 | Flexible touch sensor and flexible touch display module |
| US11301098B2 (en) | 2020-08-07 | 2022-04-12 | Tpk Advanced Solutions Inc. | Flexible touch sensor and flexible touch display module |
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Assignee: Yungu (Gu'an) Technology Co., Ltd.|Bazhou Yungu Electronic Technology Co., Ltd.|Kunshan Institute of technology new flat panel display technology center Co., Ltd Assignor: Kunshan Guo Xian Photoelectric Co., Ltd. Contract record no.: X2019990000156 Denomination of utility model: Conductive mould group, the touch screen and display device for having the conduction mould group Granted publication date: 20190820 License type: Common License Record date: 20191030 |